Brian Crower BC0043-2 Stage 3 Camshafts for 2002-2011 Honda/Acura K-Series

Vehicle Fitment

• 2002-2006 Acura RSX Type-S - K20A2/K20A
• 2004-2008 Acura TSX (extended to 2009-2014 via King Motorsports) - K24A2
• 2006-2011 Honda Civic Si (8th-Gen) - K20Z3
• 2006-2011 Honda Civic Type R - K20Z3

Features

• 8620 billet steel camshafts - exceptional strength for high-RPM/high-pressure builds
• Precisely CNC-ground to sub-micron tolerances (±0.02 mm)
• Prototyped and dyno-tested for proven horsepower gains
• Aggressive ramp design via small-diameter grinding wheels for superior cylinder fill
• Advanced duration: 314° intake / 300° exhaust for maximum power
• Solid performance up to 250° intake / 244° exhaust @ .050" lift
• High valve lift: .525"/.518" (1.75:1 rocker ratio)
• Intended for fully built engines with high-compression pistons or all-motor K24 setups

Specifications

• Material: 8620 billet steel
• Advanced Duration: 314° intake / 300° exhaust
• Duration @ .050": 250° intake / 244° exhaust
• Valve Lift (1.75:1): .525" / .518" (13.34 mm / 13.15 mm)
• Max cam advance: 30° per BC cam card
• CNC grind tolerance: ±0.02 mm
• Note: Late model heads (post-2004) may require BC2940 keepers due to revised keeper grooves

Included Components

• 1x Intake Camshaft
• 1x Exhaust Camshaft
• 1x Camshaft Timing Tag

Product Description

The Brian Crower BC0043-2 Stage 3 Camshafts are engineered for high-output, fully built Honda and Acura K-Series engines. Crafted from robust 8620 billet steel and ground to exacting CNC tolerances, this cam set unleashes serious power with an aggressive 314° intake and 300° exhaust duration paired with high valve lift (.525"/.518"). The result is significant airflow improvement for high-compression all-motor builds or K24 performance applications.

Designed for seasoned builders targeting top-tier performance on RSX Type-S, TSX, Civic Si, or Civic Type R platforms from 2002-2011, the BC0043-2 delivers reliable power gains - and proven durability under high rpm and high stress. As with all BC high-performance cams, these are prototyped and dyno-tuned to ensure delivery of real-world gains.

Installation requires a matched valvetrain spring kit (BC0040 or BC0040S). If your cylinder heads are from after 2004, BC2940 billet keepers are strongly recommended to avoid interference issues with updated keeper groove angles in modern heads. Fitment confirmed through 2011. Coverage past 2011 is unconfirmed at time of listing.